How long have you been on the job that earns $50k base salary ( i am assuming from your post) plus commission?
Have any of the three LOs you've been working with tell you what your DTI has been calculated?
They're just looking for the truth.
If your past business is truly closed and there's no proof of current operations you should have nothing to worry about.
If it's still licensed and operating, you'll need to provide a YTD P&L but you'll need to factor in any income or losses based upon the last two years' tax history.